Question

two trains 120m. and 180m. long are running in opposite directions in parallel rails at the rate of 48kms/hr. and 60 kms/hr. respectively .find the time covered when a passenger of the first train crosses over the second train​

Answer 1

Step-by-step explanation:

length1=120metres

length1=180 metres

speed 1=48km/hr=48×1000/3600

=80/6 m/s

speed 2=60km/hr=60×1000/3600

=100/6 m/s

time=distance/Velocity

=120+180/(80/6+100/6)

=300/30

=10s